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- reynolds stress tensor 雷诺应力张量
- Conservation of Mass. Conservation of Momentum. Stress Tensor. 3质量守恒,动量守恒,应力张量。
- Conservation of Mass . Conservation of Momentum. Stress Tensor. 质量守恒,动量守恒,应力张量。
- Predictions with the Reynolds stress model (RSM) were in reasonable agreement with experimental results measured by intelligent five-hole probe. 计算结果与用五孔探针测试的气相流场实验结果吻合很好。
- In the CGT region,the relation between turbulent Reynolds stress and mean velocity gradient is nonlinear. CGT区域内雷诺应力与平均速度梯度呈非线性关系。
- In the CGT region, the relation between turbulent Reynolds stress and mean velocity gradient is nonlinear. 逆压梯度时,湍动能负产生率区域不复存在,此时CGT区域从有到无,也是呈 先增大后缩小的趋势,并最终消失;
- We have described the stress tensor arising from equilibrium considerations and the strain tensor arising from kinematical considerations. 我们已经叙述了应力张量和应变张量的有关概念和某些特质,它们是分别从平衡的角度和运动的角度推导而得的。
- L.Lebrere, B.Dillies, “Engine Flow Calculations Using a Reynolds Stress Model in the KIVA-II Code,” SAE Paper No. 960636. 罗治平,“单缸透明引擎数值模拟与紊流量测”,国立清华大学动力机械研究所硕士论文,1995。
- The complete stress tensor of regional stress field is obtained based on the genetic algorithm;and the result is satisfactory. 同时将遗传算法应用于求解应力场任意一点的完全应力张量,得到比较满意的结果。
- The electromagnetic force of the machine was numerically investigated via virtual work method and Maxwell stress tensor method. 计算中选用虚位移法和麦克斯韦应力张量法两种方法。
- Abstract Based on Reynolds stress turbulence model,airflow fields within urban street canyons under different building heights were simulated. 摘要 应用雷诺应力湍流模型,模拟了不同高度比的城市街道峡谷的气流场。
- The results shows that die pressure ofextruder, relaxation time of polymer and geometrical parameters of die have significanteffect on stress tensor in extruder die. 模拟结果表明:机头压力、材料的松弛时间以及口模流道的几何尺寸对高聚物在机头中的应力张量的变化影响较大;
- The internal flow field of hydrocyclone is simulated using LRR Reynolds stress model, applying SIMPLE arithmetic and basing on basic theory of hydrocyclone. 从油水分离旋流器流场分析的基本理论出发,采用LRR雷诺应力湍流模型,应用SIMPLE算法,对其内部流场进行了数值模拟。
- Variation of time average velocity and Reynolds stress before and after planting eichhornia crassipe in the watercourse is analyzed based on laboratory experiments. 通过室内试验。分析了在河道种植凤眼莲前后水流时均流速和雷诺应力的变化。
- In this paper we turn out the coherent-state expression of energy-momentum stress tensor in two dimensional Schwarzschild black holes. The results have been discussed as well. 讨论了一个二维黑洞的能量应力张量的相干态表示,并将这样得到的结果与已有的结果进行比较和讨论。
- The turbulent flow in a hydrocyclone is predicted numerically using a Reynolds stress model, and the numerical results agree well with experimental data. 本文采用雷诺应力模型计算了水力旋流器的水相湍流流场,计算结果与实验数据吻合很好。
- Test results show that the eichhornia crassipe has influences on the time average velocity and Reynolds stress, and different cropping patterns have different influences. 试验结果表明,凤眼莲对各向时均流速和雷诺应力的分布影响明显,且不同种植方式的影响程度也不同。
- The mean velocity profiles, the RMS (root-mean-square) velocity profiles and Reynolds stress profiles calculated by the modified model are consistent with the results of DNS. 用修正后的模型计算出的平均速度分布、均方根速度的分布以及雷诺应力的分布,均与直接数值模拟(DNS)的结果吻合较好。
- The Launder &Ying algebraic Reynolds stress turbulent model with hybrid finite analytical method is applied to simulate the secondary current in the compound channel. 摘要采用L-Y雷诺应力模型,对水面和固壁边界条件进行有效的处理,结合混合有限分析法数值模拟了复式断面明渠二次流流动。
- Results show that the longitudinal velocity distribution fluctuates significantly, and that the relative turbulence intensity and Reynolds stress have a little increase. 结果表明,布设种植圈后,纵向流速分布波动明显,相对紊动强度和雷诺应力均略有增加。